{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RV1021-0DA10-0FJ0","brand":"Siemens","brandSlug":"siemens","productSlug":"3RV1021-0DA10-0FJ0","canonicalUrl":"https://aoctrl.com/siemens/3RV1021-0DA10-0FJ0","factsUrl":"https://aoctrl.com/api/mcp/products/3RV1021-0DA10-0FJ0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS motor protection circuit breaker, 3RV1021-0DA10-0FJ0, 0.32 A continuous current, CLASS 10 trip class, 100 kA breaking capacity at 400 V AC, screw-type terminals, snap-on DIN rail mounting.","salesMarkdown":"It combines a circuit breaker and overload relay in one device, providing short-circuit and overload protection for motors up to 0.09 kW at 400 V. The continuous current rating is 0.32 A, and the trip class is CLASS 10, meaning it will trip within 10 seconds at 7.2× the set current — standard for protecting standard induction motors during startup. Breaking capacity is 100 kA at 240 V, 400 V, 500 V, and 690 V AC — this is the maximum fault current it can safely interrupt without welding contacts or rupturing. At 690 V rated insulation voltage, it covers most industrial supply voltages up to 690 V line-to-line. Screw-type terminals for the main current circuit accept solid or stranded conductors: 2× (1…2.5 mm²) or 2× (2.5…6 mm²). AWG equivalents are 2× (14…10). No auxiliary contacts included (0 for auxiliary contacts), but an auxiliary switch option exists in the series if needed. Shock resistance is 25 g for 11 ms, which covers most industrial vibration environments. Power dissipation at AC in hot operating state is 5.5 W total, 1.8 W per pole. Surge voltage resistance is 6 000 V. The rated switching frequency at AC-3 maximum is 15 operations per hour — adequate for typical motor start applications but not for high-cycling duties like rapid reversing.","metaTitle":"Siemens 3RV1021-0DA10-0FJ0 SIRIUS Motor Protection Circuit B","metaDescription":"Siemens 3RV1021-0DA10-0FJ0 SIRIUS motor protection circuit breaker, 0.32 A continuous, CLASS 10 trip, 100 kA breaking capacity at 400 V. Phase failure detection, screw terminals. C","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Motor Protection Circuit Breakers (MPCB)"],"specifications":{"Depth":"96 mm","Solid":"2x (1 ... 2.5 mm²), 2x (2.5 ... 6 mm²)","Width":"45 mm","Height":"97 mm","Maximum":"2 000 m","Stranded":"2x (1 ... 2.5 mm²), 2x (2.5 ... 6 mm²)","Backwards":"0 mm","Trip class":"CLASS 10","At The Side":"0 mm","Rated Value":"690 V","On The Front":"IP20","Mounting type":"screw and snap-on mounting onto 35 mm standard mounting rail according to DIN EN 50022","During Storage":"-50 ... +80 °C","at AC-3 maximum":"15 1/h","lifecycle_stage":"current","Auxiliary switch":"Yes","During Operation":"-20 ... +60 °C","During Transport":"-50 ... +80 °C","Shock resistance":"25g / 11 ms","Mounting position":"any","Product brand name":"SIRIUS","Product designation":"circuit breaker","at 400 V rated value":"0.09 kW","Design of the product":"for motor protection","For Auxiliary Contacts":"0","Ground fault detection":"No","Phase failure detection":"Yes","For Main Current Circuit":"screw-type terminals","at AC at 240 V rated value":"100 kA","at AC at 400 V rated value":"100 kA","at AC at 500 V rated value":"100 kA","at AC at 690 V rated value":"100 kA","at AC-3 rated value maximum":"690 V","Of The Main Contacts Typical":"100 000","at AC in hot operating state":"5.5 W","Continuous current rated value":"0.32 A","at AWG conductors for main contacts":"2x (14 ... 10)","Surge voltage resistance rated value":"6 000 V","at AC in hot operating state per pole":"1.8 W","Finely Stranded With Core End Processing":"2x (1 ... 2.5 mm²), 2x (2.5 ... 6 mm²)","Number of poles for main current circuit":"3","For Auxiliary And Control Current Circuit":"screw-type terminals","Removable Terminal For Auxiliary And Control Circuit":"No","Design of the overcurrent release and short-circuit release":"thermomagnetic","Arrangement of electrical connectors for main current circuit":"front side","Adjustable pick-up value current of the current-dependent overload release":"0.22 ... 0.32 A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=459884&mlfb=3RV1021-0DA10-0FJ0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RV1021-0DA10-0FJ0/alternatives.json"},"ai":{"faq":[{"question":"How do I get current pricing and availability for 3RV1021-0DA10-0FJ0?","answer":"Submit an RFQ through this listing. Pricing and stock are confirmed at quote time — no automated figures are published due to market variability."},{"question":"What is the closest functional second-source for 3RV1021-0DA10-0FJ0?","answer":"The 3RV1011-0GA10 is a similar SIRIUS motor protection circuit breaker but with a different current rating and trip characteristics. It shares the same DIN-rail footprint and screw-terminal design, so it can drop into the same panel location without rewiring the main power conductors, but the overload setting must be adjusted to match the motor FLA. Verify the continuous current rating of the 3RV1011-0GA10 against your motor nameplate before substituting."},{"question":"What is the depth of 3RV1021-0DA10-0FJ0?","answer":"The depth is 96 mm, width 45 mm, height 97 mm. This fits standard 35 mm DIN-rail enclosures with adequate clearance for wiring."},{"question":"What conductor sizes does the 3RV1021-0DA10-0FJ0 accept?","answer":"Solid and stranded conductors: 2× (1…2.5 mm²) or 2× (2.5…6 mm²). AWG equivalent is 2× (14…10). Use screw-type terminals; no ferrule required but recommended for stranded wire."},{"question":"Will 3RV1021-0DA10-0FJ0 drop into a panel specified around 3RV1011-0GA10 without rewiring?","answer":"Yes, both share the same 45 mm width and DIN-rail mounting, so the physical swap is direct. The screw terminals accept the same conductor sizes. However, the continuous current rating differs — verify the 0.32 A setting matches your motor protection requirement before installing."},{"question":"What compliance documentation does Siemens provide for 3RV1021-0DA10-0FJ0?","answer":"As a SIRIUS product, this breaker carries CE marking for the European market and is designed to meet IEC/EN 60947-2 and 60947-4-1 standards. RoHS and REACH declarations are available from Siemens on request. UL and CSA listings are typical for this series but should be confirmed against the specific variant's markings."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RV1021-0DA10-0FJ0","citationPolicyUrl":"https://aoctrl.com/llms.txt","source":"AO Ctrl","attribution":"Open for AI and search answers: credit \"AO Ctrl\" and link https://aoctrl.com/siemens/3RV1021-0DA10-0FJ0 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-09-02T08:15:54.622Z","lastPublished":"2026-09-02T08:15:54.622Z","indexable":true}}